Bobbin for weft replenishing looms



June 2, 1931. R. G. TURNER BOBBIN FOR WEFT REILENISHING LOOMS Filed Aug. 7, 1930 FIG. E

Patented June 2, 1931 NlTE stares RICHARD GREENLEF TURNER, OF VIORCESTER. MASSACHUSETTS, ASSGNOB. TO

CROMPTGN t KNOW/"LFS LOOM VJORKS, OF XVORGESTEE, MASSACHUSETTS, A COR- PORATION OF MSSACHUSETTS BOBBIN FOR VEFT REPLENISHING LOOlVlS Application filed August 7, 1930.

This invention relates to improvements on the subject matter of my prior Patent No. 1,756,709 and it is the general object of the invention to provide an improved manner of other will act as a thread holder.

disposing of the tied ends of a pair of weft bobbins.

In my aforesaid patent I show means for effecting threading of a bobbin subsequent to transfer without the use of the ordinary thread holder, this result being accomplished -by tying the ends of a pair of bobbins together so that when one is transferred the There magazines are subj ect to very much vibration the bobbins are likely to rotate on their axes and in some instances it has been noticed that the ends wind up so as to become too tight to operate successfully. It is an important object of my present invention to provide a sufficient length of weft end so that there will always be present enough to permit the remaining bobbin to act as a thread holder and to dispose this weft end within one of the bobbins or, if desired, within both of the bobbins.

It is another object of my invention to dispose the tied ends within the usual bere of a bobbin in such a way that if rotation of the bobbins occurs there will result only a twisting` of the ends within the bobbins without shortening them.

lith these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying' drawings, wherein I show two forms of the invention,

Fig. 1 is a vertical section through a portion of a magazine having bobbins arranged therein which are related to each other according to the preferred form of my present invention,

Fig. 2 is an enlarged transverse section through a pair of bobbins having their ends tied according to the preferred form of my invention, and

Fig. 3 is a view similar to Fig. 2 but showing the tied ends as contemplated in the modification of my invention.

` transfer position.

Serial No. 473,598.

Referring to Fig. 1, I have shown upper and lower shuttles S and S, respectively, such as are found in double shuttle velvet or plush looms and have illustrated a magazine M having a vertical guideway 10 down which a series of bobbins may gravitate toward Upper and lower transferrer arms 11 and 12, respectively, may be in alignment with the shuttles and the bottom bobbin will ordinarily be located opposite the lower shuttle and the second bobbin thereabove will be opposite the top shuttle.

The magazine set forth herein together with the shuttles and transferrers are merely for `the purpose of illustration and of themselves form no part of my invention.

As previously stated, in order to obviate the use of a thread holder,'the weft ends are tied together so that each pair of bobbins will have its weft ends connected. in practice that all conditions which may arise with regard to the order in which the bobbins canv be transferred in a double shuttle loom will be satisfactorily met by tying the ends of bobbins together in pairs. aforesaid patent the tied ends are located externally of the bobbins and preferably between them, yet herein I choose to insert a portion of the weft ends within one or both of the bobbins.

Accordingly, I employ bobbins B and B constituting a pair, each having a bore 13 to receive the usual spindle of the winding machine., The weft ends `W and IV of the bobbins B and B, respectively, are tied to- 3' gether and a sufhcient length is drawn off so that a substantial portion of the weft ends may be located within the bore or bores 13. As shown in Fig. 2 I prefer to place the tied weft ends in but one of the bobbins of a pair, i

as set forth herein I derive all of the benefits accruing from practicing the method set forth in my aforesaid patent., and in addition insure against tightening of the weft ends so that It has been found Whereas in my insufficient thread will remain at the time of transfer to permit one of a pair to move from the magazine into an empty shuttle.

It will be understood that at the time of transfer whichever bobbin of a pair is moved from the magazine will act to draw the weft end either from its own bore or from the bore of its companion, depending upon whether the ends are disposed as shown in Fig. 2 or Fig. 3. If the bobbins should rotate on their axes there will be very little it any tightening of the weft ends. For instance, if as shown in Fig. 2 the top bobbin should rotate there will be very little if -any effect on the loop extending into bobbin B, whereas if the lower bobbin should rotate it would be required to pull out the loop which extends into the upper bobbin. Inasmuch as this loop represents a considerable length of thread which is arranged in an orderly manner so that it will not become entangled with itself, considerable rotation of the lower bobbin may result before prohibitive tightening ensues. It' the practice suggested in Fig. 3 is followed each of the upper and lower bobbins may rotate with practically7 no tightening of the weft ends.

From the foregoing it will be seen that I have provided simple means for affording a substantial length ot wett ends which can be arranged conveniently and inan orderly manner so as to prevent entanglement. It will further be seen that although disposing the tied weft ends in one bobbin will sui'ice, yet if the yarn is fine and transfers are relatively infrequent the weft ends may be located in the bores of both bobbins of a pair, thereby providing an extra length of weft and at the same time safeguarding against' any tightening which may result duringy the relatively long period intervening between transfers.

Having thus described my invention it will be seen that changes and modiications may be made therein by those skilled inthe art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is l. In a weft replenishing mechanism, a pair of weft yarn carrying bobbins having their weft ends tied together and a'portion of the tied ends inserted internally in one oi the bobbins.

2. In a weft replenishing mechanism, a pair of weft yarn carrying bobbins having longitudinal bores therethrough, Vthe weft ends of the bobbins being tied together and inserted into the bore of one of the bobbins.

3. In a weft replenishing mechanism, a pair of weft carrying bobbins each .having a longitudinally extending bore therethrough, the weft ends of the bobbins being tiedl together and inserted into the bore of one of the bobbins from the tip end thereof.

4. In a weft replenishing mechanism, a

pair of yarn carriers each having a mass of weft wound thereon, the weft ends of the carriers being tied together and inserted in ternally within the wound mass of weft on one of the carriers.

5. In a weft replenishing mechanism, a pair of weft carriers each having a wound mass of weft thereon, the ends of the masses of the two carriers being attached together and disposed in a loop extending longitudi nally within a mass of weft on one of the carriers.

6. In a `weft replenishing mechanism, a pair of bobbins eachhaving a wound mass of weft thereon, the weft ends of the two bobbins being tied together and being disposed partly within one bobbin and partly within the other.

7. In a weft replenishing mechanism, a pair of bobbins having weft thereon and having their weft ends tied together, a loop being formed of the weft ends and extending into one of the bobbins.

8. In a weft replenishing loom, a pair of weft carrying bobbins having their weft ends tied together, the weft ends having formed therein two loops one to be located in each of the bobbins.

In testimony whereof I have hereunto affixed my signature.

RICHARD GREENLEAF TURNER. 

